F81534A is the ideal bridge for USB to quad UART controller which complies with USB 2.0 and standard serial port spec. Each UART includes 128-byte send/receive FIFO, a baud rate generator, complete modem control capability an interrupt system.
The F81534A will enter suspend mode when suspend signaling is detected on the bus. The F81534A exits the suspend mode when any of the following occur: resume signaling is detected or generated, a USB Reset signal is detected, or a device reset occurs.
The device built in +1.8V & +3.3V LDO regulators.